The typical Cummins Aftertreatment Integration Engineer salary is $74,843. Aftertreatment Integration Engineer salaries at Cummins can range from $65,526 - $89,075. This estimate is based upon 24 Cummins Aftertreatment Integration Engineer salary report(s) provided by employees or estimated based upon statistical methods. When factoring in bonuses and additional compensation, a Aftertreatment Integration Engineer at Cummins can expect to make an average total pay of $88,239 . See all Aftertreatment Integration Engineer salaries to learn how this stacks up in the market.